[net][lwip] fix lwIP 2.1.0 personalized sign bug
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@ -487,8 +487,13 @@ static err_t eth_netif_device_init(struct netif *netif)
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rt_err_t eth_device_init_with_flag(struct eth_device *dev, const char *name, rt_uint16_t flags)
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rt_err_t eth_device_init_with_flag(struct eth_device *dev, const char *name, rt_uint16_t flags)
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{
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{
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struct netif* netif;
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struct netif* netif;
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#if LWIP_NETIF_HOSTNAME
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#define LWIP_HOSTNAME_LEN 16
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char *hostname = RT_NULL;
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netif = (struct netif*) rt_malloc (sizeof(struct netif) + LWIP_HOSTNAME_LEN);
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#else
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netif = (struct netif*) rt_malloc (sizeof(struct netif));
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netif = (struct netif*) rt_malloc (sizeof(struct netif));
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#endif
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if (netif == RT_NULL)
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if (netif == RT_NULL)
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{
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{
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rt_kprintf("malloc netif failed\n");
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rt_kprintf("malloc netif failed\n");
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